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LP8553 数据表(PDF) 8 Page - Texas Instruments

部件名 LP8553
功能描述  LP8553 High-Efficiency LED Backlight Driver for Notebooks
PDF  41 Pages
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制造商  TI2 [Texas Instruments]
网页  https://www.ti.com
标志 TI2 - Texas Instruments

LP8553 数据表(HTML) 8 Page - Texas Instruments

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LP8553
SNVS701B – SEPTEMBER 2011 – REVISED JANUARY 2014
www.ti.com
Logic Interface Characteristics (continued)
Symbol
Parameter
Condition
Min
Typ
Max
Units
Logic Input PWM
VIL
Input Low Level
0.2xVDDIO
V
VIH
Input High Level
0.8xVDDIO
V
II
Input Current
−1.0
1.0
μA
Logic Inputs SCL, SDA
VIL
Input Low Level
0.2xVDDIO
V
VIH
Input High Level
0.8xVDDIO
V
II
Input Current
−1.0
1.0
μA
Logic Outputs SDA, FAULT
VOL
Output Low Level
IOUT = 3 mA (pull-up current)
0.3
0.5
V
IL
Output Leakage Current
VOUT = 2.8V
−1.0
1.0
μA
I
2C Serial Bus Timing Parameters (SDA, SCLK) (1)
Limit
Symbol
Parameter
Units
Min
Max
fSCLK
Clock Frequency
400
kHz
1
Hold Time (repeated) START Condition
0.6
μs
2
Clock Low Time
1.3
μs
3
Clock High Time
600
ns
4
Setup Time for a Repeated START Condition
600
ns
5
Data Hold Time
50
ns
6
Data Setup Time
100
ns
7
Rise Time of SDA and SCL
20+0.1Cb
300
ns
8
Fall Time of SDA and SCL
15+0.1Cb
300
ns
9
Set-up Time for STOP condition
600
ns
10
Bus Free Time between a STOP and a START
1.3
μs
Condition
Capacitive Load Parameter for Each Bus Line
Cb
10
200
ns
Load of 1 pF corresponds to 1 ns.
(1)
Ensured by design. VDDIO = 1.65V to 5.5V.
8
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Copyright © 2011–2014, Texas Instruments Incorporated
Product Folder Links: LP8553



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